# Fiber optic transceiver CBO QSF-503 (MPN QSF-503-BO) compatible QSFP module

**URL:** https://aio.lv/en/product--blueoptics-qsf-503-bo--4466247
**Data updated:** 2026-02-25 16:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** QSF-503-BO
**EAN:** 4063232644394
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 309.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 256.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsf-503-bo--4466247

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

CBO QSF-503 fiber optic transceiver (MPN QSF-503-BO) is a QSFP-compatible module designed for high-density fiber connections. Intended for use in network switches, routers and optical equipment, it provides a compact form factor for multi-channel fiber links. The module is suitable for integrating into existing QSFP ports to extend optical connectivity and support network deployment and upgrades.

## Long description

The CBO QSF-503 fiber optic transceiver is a QSFP-compatible module designed for high-density optical connections in data center and enterprise networks. It fits standard QSFP ports to enable multi-channel fiber links, supporting compact installation in switches, routers and optical equipment. The module is intended for extending optical connectivity and facilitating network deployment and upgrades where space and port density are important.
Advantages
The CBO QSF-503 provides a compact QSFP form factor that conserves port space while enabling multi-channel fiber transmission. Its design focuses on interoperability with standard QSFP interfaces, allowing simple integration into existing network hardware. The module supports reliable optical links suitable for high-density cabling environments and reduces the need for larger modular transceivers when multiple channels are required.
Suitable for
High-density switch and router uplinks in data centers
Interconnects between aggregation and core network devices
Optical equipment requiring QSFP-compatible modules
Network upgrades where compact multi-channel fiber links are needed
Key specifications
Form factor: QSFP-compatible transceiver module
Interface: multi-channel fiber optic connection suitable for QSFP ports
Application: designed for use in network switches, routers and optical equipment
Physical: compact module intended for high-density port environments
Compatibility: intended to operate with standard QSFP ports and cages
How to use
Insert the CBO QSF-503 module into a compatible QSFP port on a switch, router or optical device, ensuring the module is aligned with the port cage and fully seated. Once installed, connect the appropriate fiber cables to the module’s optical interfaces following the device manufacturer’s cabling guidelines. Verify link status through the host device management interface and monitor optical parameters as supported by the network equipment. For safe removal, disable the port if required by the host and extract the module by releasing any retention mechanism before pulling it from the cage.
Usage recommendations
Use multimode or single-mode fiber and connectors that match the module’s optical characteristics and the host device requirements. Follow ESD precautions when handling the transceiver and avoid touching optical ferrules. Maintain proper cable bend radius and secure fiber runs to prevent signal degradation. Confirm firmware and hardware compatibility with the host device to ensure reliable operation.

## FAQ

### How much does the CBO QSF-503 fiber optic transceiver QSFP cost, and is it available for purchase?

The price is 309.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 341 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All BlueOptics products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BlueOptics service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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